"The population of Roman Dura", C. Bradford Welles, [w:] "Coleman Norton's Studies in Roman econ. and soc. hist. in honor of A. C. Johnson", 1952 : [recenzja]

The Journal of Juristic Papyrology, Tom 6 (1952) s. 277
Rafał Taubenschlag , C. Bradford Welles (aut. dzieła rec.)